diff --git a/.github/workflows/manual-deep-sync.yml b/.github/workflows/manual-deep-sync.yml
index 42f0e45..c605645 100644
--- a/.github/workflows/manual-deep-sync.yml
+++ b/.github/workflows/manual-deep-sync.yml
@@ -35,6 +35,5 @@ jobs:
           PARALLET: "1"
           http_proxy: socks5://127.0.0.1:8080
           https_proxy: socks5://127.0.0.1:8080
-          SKOPEO: docker run --rm -i quay.io/containers/skopeo:v1
         run: |
           ./hack/diff.sh
diff --git a/.github/workflows/manual-sync.yml b/.github/workflows/manual-sync.yml
index 15a9e1b..d9e6940 100644
--- a/.github/workflows/manual-sync.yml
+++ b/.github/workflows/manual-sync.yml
@@ -36,6 +36,5 @@ jobs:
           PARALLET: "1"
           http_proxy: socks5://127.0.0.1:8080
           https_proxy: socks5://127.0.0.1:8080
-          SKOPEO: docker run --rm -i quay.io/containers/skopeo:v1
         run: |
           ./hack/diff.sh
diff --git a/.github/workflows/sync.yml b/.github/workflows/sync.yml
index 0930251..992b3fa 100644
--- a/.github/workflows/sync.yml
+++ b/.github/workflows/sync.yml
@@ -31,6 +31,5 @@ jobs:
           PARALLET: "2"
           http_proxy: socks5://127.0.0.1:8080
           https_proxy: socks5://127.0.0.1:8080
-          SKOPEO: docker run --rm -i quay.io/containers/skopeo:v1
         run: |
           ./hack/diff.sh
diff --git a/.github/workflows/target-image-sync.yml b/.github/workflows/target-image-sync.yml
index 373d989..ec93bfc 100644
--- a/.github/workflows/target-image-sync.yml
+++ b/.github/workflows/target-image-sync.yml
@@ -59,7 +59,6 @@ jobs:
         PARALLET: "1"
         http_proxy: socks5://127.0.0.1:8080
         https_proxy: socks5://127.0.0.1:8080
-        SKOPEO: docker run --rm -i quay.io/containers/skopeo:v1
         MESSAGE: "${{ github.event.issue.body }}"
       run: |
         ORIGIN_IMAGE=$(echo "${MESSAGE}" | grep SYNC | awk '{print $2}' | head -n 1 | sed "s/\r//g")